var g_counter = 0;
var g_interval = null;
var g_images = new Array();
g_images[0] = '/images/flyer-1.jpg';
g_images[1] = '/images/flyer-2.jpg';
g_images[2] = '/images/flyer-3.jpg';

/**
 * 
 * @return
 */
function setupImageRotator()
{
  if (g_interval == null) {
    g_interval = setInterval('imageRotator()', 4000);
  }
}

/**
 * 
 * @return
 */
function imageRotator()
{
  var image = document.getElementById('image-rotator');
  if (image) {
    //alert("changing: " + image.src + "; to: " + g_images[g_counter % 3]);
    image.src = g_images[g_counter % 3];
    g_counter++;
  }
}